RENNtechHQ

Now available from RENNtech is the CLA 45 Piggy Back ECU.

$2450 50HP!!!

Please contact me with any questions or to place an order.

Our proprietary ECU upgrade for the Mercedes M133 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.
The RENNtech tuning module allows the user to change the performance level and gives the ability to set different performance levels running both higher or lower boost compared to delivered settings. This gives you power on demand or economy when you want with smooth torque delivery and performance throughout the entire powerband. This also allows the user to compensate for fuel quality and places of extreme climate or to adjust for higher octane fuels and the added performance of racing blends.
Our tuning module for the CLA 45 AMG is plug & play, delivered with a specific M133 engine harness to make installation simple and requires no cutting or splicing of wires.
Acceleration numbers: (Numbers based on normal settings and pump gasoline)

• 0-100 kph in 4.0 seconds with race start (stock 4.6 with race start)
• 0-200 kph in 14.5 seconds with race start (stock 17.6 with race start)

without race start:

• 0-100 kph in 4.3 seconds
• 0-200 kph in 14.9 seconds

Power figures: (Numbers based on normal settings and pump gasoline)

• 414hp @ 6250rpm (361whp)
• 533Nm torque @ 4000rpm (393 lbf ft)

Gains: (Numbers based on normal settings and pump gasoline)

• Horsepower: +50hp at 5500rpm, +40hp at 6100rpm
• Torque: Average plus of 70Nm (52 lb/ft) between 3250rpm and 5500rpm.

Note: Due to the ability of the end user to set performance levels, RENNtech assumes no liability for incorrectly adjusted performance levels by the customer.



Video-

Mercedes A45 AMG - RENNtech tuned - Beschleunigung - acceleration 150 - 280 km/h / 100 - 175 mph - YouTube

dblock110

awesome

RENNtechHQ

We have a CLA45 shop car and it runs awesome with the piggy back in it.

jamesyot

What other mods are you dropping for the car?

RENNtechHQ

You will have to wait and see

TighTT

I've been running the Renntech tune for a while now and have nothing but good things to say about it!! More mods ASAP Renntech!!!

eason

Are you guys running setting "3" with your box?

TighTT

I run 5.

eason

With 91/92 octane fuel?

TighTT

93

eason

Mine comes with pre-set in dial 3 and I though it was the recommended setting for US/Canada.

jstefanop

iTrader: (1)

what are these "settings" and what do they do?

Kevalex

Probably ajusting timing and boost. If you set it to 5 with a lower Octane, it will knock, and you will eventualy kill your engine (but my guess is that the ECU will kill boost and timing to save the engine)

You dont have 94?

We have that gaz with Petro Canada in Quebec.

eason

We have Chevron 94 in BC... but many people reports our 94 is worst than 92 from the US. Just for reference, my E63 knocks a bit with OE Tuning Stg 1 and Chevron 94, but the car runs very strong with US 92 without any knocks.

ichiban

Do you have a baseline before and after dyno?

RENNtechHQ

If you watch the video you will see the dyno sheet at the 40 second mark.

RENNtechHQ

In Stock!!! Plug and Play

Iggy Higgins

RENNtech Stage 1 A45
25oC ambient
Otherwise totally stock



Cooler temps will see 11's i'm sure

RENNtechHQ

Thanks for posting up the time slips.

jamesyot

Common mike lets go we need more mods!

CLA45AMG2.0

is the piggy back detectable by the dealer if you take it off the car before going to the dealership? Thanks

RENNtechHQ

We are working on it.

RENNtechHQ

The dealer would be able to see the piggy back unit under the hood. We do include a by pass plug so you can remove the unit quick and easy. If you wanted to make sure they dealer didn't see anything then you would just remove the plug and play harness as well.

Iggy Higgins

No worries Mike. Looking forward to running the car again when she has some more miles under her belt (2k at min) and obviously in cooler conditions..

CLA45AMG2.0

I was wondering if the dealer would be able to tell the boost pressure was raised or anything, in case the engine fails in some kind of way? Or does the stock computer not show any difference after the install of the piggyback? Thanks for the quick response